See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.


View the COMSOL Conference 2023 Collection

Optics, Photonics and Semiconductorsx

Cristalline Lens abberration during Laser Surgery

A. Maurer1, J. Minardi2, R. Rozsnyo2, D. Enfrun1, R. Boulandet2
1Kejako SA, Switzerland
2HEPIA, University of Applied Sciences Western Switzerland

Femtosecond laser are now a regular tool of the modern ophtalmic surgeon, for instance in cataract surgery by enabling precise cut of the cristalline lens tissue before removal. As femtosecond laser tissue interaction is highly dependant of the energy spatial density, a simplified model ... Read More

Plasmonic nanoantenna for energy-efficient All-Optical Switching

Maxime Vergès1, Julius Hohlfeld1, Michel Hehn1, Stéphane Mangin1, Artëm Larin2, Roman Savelev2, Dmitry Zuev2, Colas Joannin3
1Université de Lorraine, Institut Jean Lamour, Nancy, France
2ITMO University, St. Petersburg 197101, Russia
3COMSOL France SAS, Grenoble, France

Our goal is to create plasmons to enhance All Optical Switching (AOS) of the magnetization. We used a finite-element model in order to understand the impact of plasmonic disk-shaped nanoantennas on magneto-optical effects. We first tested our model without an antenna and compare it with ... Read More

Diffraction efficiency of gratings with sinusoidal profile

P. Janicek1, V. Stepankova1, M. Kurka1, K. Palka1, A. Ventura2, J. G. Hayashi2
1FChT, University of Pardubice, Czechia
2ORC, University of Southampton, United Kingdom

The aim of this study is to compare the diffraction efficiency of a sinusoidal diffraction grating numerically calculated using COMSOL Multiphysics® with the measured results performed with a custom-made equipment and calculations using Bessel functions. A diffraction grating with the ... Read More

Studying the plasmonic properties of smooth, rough and nanostructured gold surfaces

Pierre Taugeron1, Jean-François Bardeau1
1IMMM CNRS UMR 6283, Le Mans Université, Le Mans, France

In order to better understand the effect of controlled surface topographical features on SERS (surface-enhanced Raman scattering) enhancement factors, simulations of plasmonic properties of different gold surfaces (smooth, rough and nanostructured) have been carried out using the finite ... Read More

Ray Tracing Derived from Wave-based Optics for Nanoscale Light Propagation Studies: A Theoretical Overview

J. J. Tyson1, T. Rahman1, S. A. Boden1
1University of Southampton, Southampton, Hampshire, United Kingdom

As the application of nanoscale structures becomes increasingly commonplace in modern technologies, the comprehensive modelling of the subject has taken centre stage in its understanding. Take the modern application of nanoscale texturing for optical anti-reflectance as an example here; ... Read More

An Original Way of Using COMSOL Multiphysics® Application Builder to Enhance Simulation of Laser Welding

Y. A. Mayi1, M. Dal1, P. Peyre1, M. Bellet2, C. Metton3, C. Moriconi3, R. Fabbro1
1Laboratoire PIMM, Arts et Metiers, Paris, France
2CEMEF, MINES ParisTech, Sophia Antipolis, France
3Safran Additive Manufacturing, Paris, France

The present work introduces a new methodology, based on COMSOL Multiphysics® Application Builder, to account for the “beam trapping” effect in multiphysical modelling of laser welding. Incident intensities involved in laser welding processes are high enough to induce material ... Read More

Development of Augmented Reality Lightguide

N. Katte1
1Wilberforce University, Wilberforce, OH, USA

Augmented reality (AR) provides the unique ability to interact with virtual information, while also interacting with information in the real world. Lightguides can be used in the place of complicated freeform optics to make a light weight augmented reality device. In this paper this ... Read More

Ray Optics and Heat Transfer Analysis of a Curved Fresnel Lens Heater for a Desalination System

L. M. Almara1
1University of North Texas, Denton, Texas, USA

Seawater can be converted into fresh water using solar energy. This is as an easy, suitable and green solution method to obtain heat for desalination. It is possible to concentrate the sunlight heat flux onto a small focal area by using a Fresnel lens. When the focal area is correctly ... Read More

Direct Optical Surface Roughness Modeling

T. Tran1, S. Peana1, A. V. Kildishev1
1Purdue University, West Lafayette, IN, USA

Optical devices are generally simulated using ideal structures. These ideal geometries are critical in finding major features of the optical response. Unfortunately, fabrication of such devices rarely results in structures that are ideal.[1] In particular, surface roughness is rarely ... Read More

Light Management Optimization of Upconversion-Based Solar Cell Using Genetic Algorithms

J. Bork1, M. F. Doty1, J. M. O. Zide1
1University of Delaware, Newark, DE, USA

We demonstrate a COMSOL Multiphysics®-based approach to light management for upconversion-based solar cells (UBSCs). Single-junction solar cells are of high importance to sustainable energy production, however the cells are limited in their performance by the bandgap of the solar cell. ... Read More